CTQP Roadway Traffic Control Inspection 1 — Questions and Answers
Question 1: What federal document governs the design and placement of temporary traffic control devices on FDOT construction projects?
- FDOT Design Standards Index 600
- Manual on Uniform Traffic Control Devices (MUTCD) (Correct answer)
- AASHTO Roadside Design Guide
- FDOT Statewide Emergency Traffic Control Plan
Correct answer: Manual on Uniform Traffic Control Devices (MUTCD)
The Manual on Uniform Traffic Control Devices (MUTCD), adopted by FDOT, governs the design, placement, and operation of all traffic control devices including those in construction work zones.
Question 2: What is a 'Type III barricade' used for in construction zone traffic control?
- A small delineator used to guide traffic through lane transitions
- A large orange and white striped barricade used to close roads or lanes (Correct answer)
- A concrete barrier used for positive protection of workers
- A temporary sign post used in low-speed work zones
Correct answer: A large orange and white striped barricade used to close roads or lanes
Type III barricades are large, retroreflective orange-and-white striped barricades used to close roads, ramps, or approach lanes and provide high-visibility warning to drivers.
Question 3: What is the 'Termination Area' in a work zone traffic control setup?
- The area where construction ends and materials are staged
- The section at the downstream end of the work zone where traffic transitions back to normal lanes (Correct answer)
- The area behind the last taper where workers are located
- The location where temporary signage is removed at the end of the project
Correct answer: The section at the downstream end of the work zone where traffic transitions back to normal lanes
The termination area is the section at the downstream end of the work zone where lane restrictions end and traffic transitions back to normal operations.
Question 4: What minimum retroreflectivity requirement applies to construction zone signs used at night?
- Type I sheeting
- Type III or higher sheeting (Correct answer)
- Type II sheeting
- Type IV sheeting only
Correct answer: Type III or higher sheeting
FDOT and MUTCD require Type III or higher retroreflective sheeting on construction zone signs to ensure adequate nighttime visibility for drivers.
Question 5: What is the purpose of a 'shadow vehicle' or 'truck-mounted attenuator (TMA)' in a work zone?
- To provide a moving barrier that protects workers from errant vehicles during moving operations (Correct answer)
- To carry and deploy traffic control devices ahead of the work crew
- To provide elevated visibility of the work zone from a distance
- To tow a portable changeable message sign
Correct answer: To provide a moving barrier that protects workers from errant vehicles during moving operations
A TMA (truck-mounted attenuator) is a crash-absorbing buffer installed on a shadow vehicle that follows the work crew, absorbing the impact of errant vehicles and protecting workers.
Question 6: What is the 'advance warning area' in a work zone?
- The section where workers are performing the actual construction
- The section before the work zone that prepares drivers for changed conditions ahead (Correct answer)
- The buffer space between traffic and the active work area
- The area downstream of the work zone
Correct answer: The section before the work zone that prepares drivers for changed conditions ahead
The advance warning area begins well ahead of the work zone and contains signs that alert drivers to changed conditions so they can adjust speed and position before reaching the activity area.
CTQP Roadway Traffic Control Inspection 1
What federal document governs the design and placement of temporary traffic control devices on FDOT construction projects?